Evan replied fast to our emails and the instructions to get to his place were very clear and even with our delayed flight, we had no problem reaching his place. The room is nice, you've got everything you need: a fridge, air con, a fan, little ensuite shower... And the location is good too, around 10 - 15 minutes walk to Lumphini MRT.
The only little thing that bothered us was the noise... They were doing some work next door (it was just bad luck) so it was really loud early in the morning and we could also hear the people talking and working downstairs in the hallway. But this was not a significant problem. We were just lazy and wanted to wake up late ;-)
We highly recommend this place, great value for money and very good organization!!